Gas-engine governor.



Imeee.,

@vi/Mmmm F. G.v BURGHOFPER.

GAS ENGINE GOVERNOR.

APPLICATION FILI-:D AUG. 2s, 1912.-

Patented Sept. 9, 1913.

S14/went@ i entran sfrarus Param* onirica.

FRANK G.' BURG'HOFFER; or BELLINGHAM, WASHINGTON.

` eas-ENGINE GovERNon.

i `Specification of Lietters Patent.

To all ,whom t may concern.'

Be it known .that I, FRANK HOFFER, a citizen of the United '.States, residing at Bellingham, in the county of Whatcom and State of Washington, have invented new and useful Improvements in Gas-Engine Governors,'ofwhich the following is a specification.

This invention provides a governor mechanism for internal combustion engines,lthe same being adapted most especially for eny l gines of this type-of` the twocycle variety which require a close adjustment of the timer and throttle in order to maintain a4 uniform speed.. The governor` mechanism devlsed. 1n aci cordance with this invention admits ofthe timer and throttle to be operated automatically or independently` by hand So that when starting the engine the governor may be thrown "out of action and after theengine has been gotten under headway the governor mechanism may be thrown into operation to regulate the spar .and the throttle according to the speed and load. i

The invention consists of the novel fea- 4 tures, details of construction and combinationv of parts, which hereinafter will be more particularly set forth, illustrated in the accompanying drawmg, and pointed out'in theappended claims. e

Referring to the drawing, forming a part of the specification, Figure 1 is a perspective view of a governor mechanism for internal combustion engines embodying theinvention. Fig. 2 vis a det-ail` view ofthe timer shaft 'and the sleeve splined thereon, to-

gether with portions of the throttle shaft and sleeve mounted thereon and the connectingmeans for transmitting power *from the sleeve splined to the, timer shaft to the throttle shaft"` Corresponding and like parts are referred to; in the following description, and indicj'ated in all the views 4of ythe drawing, byA

the same reference characters.

The shaft 1 designated as the timer shaft,. may also constitute the-shaft vof the governor and is adapted tozbe driven any manner' from a rotating partof the'engine, ,a bevel! gear 2 being provided for this purpose and secured to the shaft 1. A timer 3,- such as generally' provided for internal combustion engines utilizing an 'electric ignition system, is loose upon the shaft 1 to be moved for. advancing or retarding the sparkQl'A 7 are weightedv in the usual manner.

' sleeve 4 splined upon the shaft 1 has upper G. BURG- governor arms moving inwardly. A shaft 10 mounted in a bearing 11 has a wheel 12 at one endl te enter the space formed/between the disks 5 and 6 so as` to make posi tive engagement with one or the other of sleeve. A pinion 13, fastened to the opposite end of the shaft 10, meshes with a 14 secured to a shaft 15, which isarrange'd parallel with the shaft 1. The Wheel 12 is preferablv of the friction type to .engage friction-ally with the disks 5 'and 6.k

A hollow shaft 16 is-mounted uponthe shaft 15 and is loose thereon. vAn arm4 17 fastened to the shaft 16-is adapted to be connected with the throttle ofthe engine by means-of a rod 18. A second arm 19, secured and has connection with the timer 3 by means of -a rod 20. A sector 21, secured to the` shaft 15, is adapted to bey a'djustably connected with the arm-19. For this purpose the sector 21 has a plurality of notches 32 and the arm -19 has a'catch 23, whichis any one ofy the notches 22 so'as toform a lock between the sector 21 and the arm 19.

19 so that the timer and throttle may be operated `by hand in the usual way. After the 'enginehas .been started and it is reinto play the catch 23 is thrown into engagement with the sector 21, thereby locking the lshafts v15l and 16. When the speed of the 'engine is excessive the weighted ends of the I`sleeve 4, thereby bringing the lower disk 6 Y into engagement with the wheel 12 to turn the shaft 10 and the `shafts l15 and 16, with thefresult that thetimer is moved toretard lowered byy the Weighted portions ofl the said disks according to the position of the to the shaft 16,'is adaptedv to' be, connected with the shaft l5 so as to' turnftherewith adapted to be thrown into engagement withv When startingy the engine the catch 23 is moved to release lthe sector 21 from the arm` quired tobring the governor mechanism governor arm 7 iy outward and elevate the Patented Sept. 9, 1913. Appi'icauonmea August 28, 1912. serialN'o. 717,557.

gear wheel the spark and the throttle is operated to reduce the supply of gaseous miXtureQto the engine. 'lVhen theespeed of the englne decreases the weighted' portions of the gov-- ernor arms 7 move lnward and lower the sleeve L1, thereby bringing the disk 5 intoengagement with the wheel 12 to rotate the sha-ft 10 in an opposite direction, together with v the shafts 15 and 16, whereby the timer is moved'to advance the spark and the throttle operated t0 admit a greater supply of mixture` to theengine, which latter 'picks up so as to run at the required speed. for which the governor may be set.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the invention, together with the device which I now consider to be the best embodiment thereof, I desire to have lit understood that lthe device shown srmerely illustrative, and

that such changes may bemade when desired as are within the scope of the claims appended hereto.

Having thus described the invention what is claimed as new, is

1. In a governor mechanism for internal combustion engines, the combination of concentric shafts, one of' said shafts being adapt-ed to have connection with the timer and the throttle of the engine, connecting means between the two shafts to admitof one being movedindependently of the other or both being connected at any relative ad- `Justinent for simultaneousmovement, a shaft adapted to be operated from a moving part of the engine, governor arms secured at one end to said shaft, a sleeve spliued to the shaft and having the opposite ends of the governor arms connected thereto, a shaft geared to one of the concentric shafts, and

a wheel secured to the last mentioned shaft and arranged to operate vbetween the disks of the before mentioned sleeve. Y

2. A governor mechanism for internal combustion engines comprising a power operated shaftadapted to be driven from aA moving part of thei engine, a timer loose on said shaft, a sleeve splin'ed to the shaft, governor arms connecting said sleeve and shaft, concentric shafts parallel with the power driven shaft, an intermediate shaft geared to one of the concentric shafts, a wheel secured to the intermediate shaft and arranged to operate between projecting portions of the before mentioned sleeve, Aconnecting means between the other one of the concentric p shafts and the timer and throttle of the engine, and connecting means between the said concentric shafts to admit of connecting them in any relative adjusted position or to admit of said shafts having independent movement.

In testimony whereof I affix my. signature in presence of two witnesses.

FRANK G. BURGHOFFER. 

